1999
DOI: 10.1046/j.1365-2265.1999.00888.x
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Acute pancreatitis and parotitis induced by methimazole in a patient with Graves' disease

Abstract: A wide variety of adverse effects of methimazole (MMI) have been reported. Here we report a new MMI-induced disorder, acute pancreatitis and parotitis. Three weeks after a woman started MMI treatment for Graves' disease, she developed a high fever, painful parotid swelling and dull pain in the upper abdomen with elevation of the serum levels of salivary and pancreatic enzymes. These abnormalities disappeared soon after the withdrawal of MMI. However, the same abnormalities were rapidly provoked when MMI was re… Show more

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Cited by 34 publications
(19 citation statements)
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“…8 In all of these reports, the mechanism was not defi nitively established, but it was presumed to be of an allergic nature. Since sulfonamides have also been linked to allergic pancreatitis, it is conceivable that the TMP/SMX-induced parotitis in our patient was the byproduct of an immune response similar to the one reported by Taguchi et al 7 Th e chemical composition of sulfonamide antibiotics diff ers from that of nonantibiotic sulfonamide compounds in that the molecular structure of the antibiotics contains a primary arylamine group, which antibiotic in our patient was also the consequence of an elicited immune response. Our patient's condition began to resolve with cessation of the TMP/SMX.…”
Section: Discussionsupporting
confidence: 70%
“…8 In all of these reports, the mechanism was not defi nitively established, but it was presumed to be of an allergic nature. Since sulfonamides have also been linked to allergic pancreatitis, it is conceivable that the TMP/SMX-induced parotitis in our patient was the byproduct of an immune response similar to the one reported by Taguchi et al 7 Th e chemical composition of sulfonamide antibiotics diff ers from that of nonantibiotic sulfonamide compounds in that the molecular structure of the antibiotics contains a primary arylamine group, which antibiotic in our patient was also the consequence of an elicited immune response. Our patient's condition began to resolve with cessation of the TMP/SMX.…”
Section: Discussionsupporting
confidence: 70%
“…There have been only four reports of MMI-induced acute pancreatitis since the first report in 1999 (2, 3, 4). …”
Section: Discussionmentioning
confidence: 99%
“…Although cases of acute pancreatitis after MMI with positive rechallenge have been reported previously (3), detection of this adverse event has not been emphasized due to its low incidence. However, the accumulation of reports of such cases will encourage clinicians to suspect MMI-induced acute pancreatitis and to discontinue the use of MMI when patients taking MMI complain of abdominal pain and fever.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In recent reports, acute parotitis due to organophosphate intoxication has been reported, which is a rare cause of acute pancreatitis [6,7] , and recurrent simultaneous acute pancreatitis and parotitis induced by methimazole was reported in 1 patient with Graves' disease [8] .…”
Section: Introductionmentioning
confidence: 99%